1<math xmlns='http://www.w3c.org/mathml' version='2.0'> 2 <apply> <eq/> 3 <apply> <diff/> 4 <bvar> <ci> x </ci> </bvar> 5 <apply> <times/> 6 <ci> u </ci> 7 <ci> v </ci> 8 </apply> 9 </apply> 10 <apply> <plus/> 11 <apply> <times/> 12 <ci> u </ci> 13 <apply> <diff/> 14 <bvar> <ci> x </ci> </bvar> 15 <ci> u </ci> 16 </apply> 17 </apply> 18 <apply> <times/> 19 <ci> v </ci> 20 <apply> <diff/> 21 <bvar> <ci> x </ci> </bvar> 22 <ci> v </ci> 23 </apply> 24 </apply> 25 </apply> 26 </apply> 27</math> 28 |